APA (7th ed.) Zitazioa
United Nations. (1999). The least developed countries 1999 report. United Nations.
Chicago Style (17th ed.) Zitazioa
United Nations. The Least Developed Countries 1999 Report. New York: United Nations, 1999.
MLA (9th ed.) Zitazioa
United Nations. The Least Developed Countries 1999 Report. United Nations, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.